I was just hoping someone could clear up exactly what are the plans for the surface fleet and the submarine fleet please

-the aircraft carriers have been/are being decommissioned to be replaced by Queen Elizabeth Class in 2015.
-The type 22s are being decomissioned this year as well as some type 42s
- type 26 frigates are in planning for 2020.
-royal navy being cut by 5,000

Is this all correct or wrong or can someone give me a more detailed account please?